Re: strange build problem with missing -by.el and -wy.el files

[Eli Zaretskii <eliz@gnu.org>]

> From: Gregor Zattler <telegraph@gmx.net>
> Date: Mon, 31 Oct 2022 23:09:45 +0100
> 
> In toplevel form:
> cedet/semantic/bovine/c.el:35:2: Error: Cannot open load file: No such file or directory, semantic/bovine/c-by
> make[4]: *** [Makefile:332: cedet/semantic/bovine/c.elc] Error 1
> make[4]: Leaving directory '/home/grfz/src/emacs-master-next/lisp'
> make[3]: *** [Makefile:366: compile-main] Error 2
> make[3]: Leaving directory '/home/grfz/src/emacs-master-next/lisp'
> make[2]: *** [Makefile:531: lisp] Error 2
> make[2]: Leaving directory '/home/grfz/src/emacs-master-next'
> make[2]: Entering directory '/home/grfz/src/emacs-master-next'
> ***
> *** "make all" failed with exit status 2.
> ***
> *** You could try to:
> *** - run "make bootstrap", which might fix the problem
> *** - run "make V=1", which displays the full commands invoked by make,
> ***   to further investigate the problem
> ***
> make[2]: *** [Makefile:413: advice-on-failure] Error 2
> make[2]: Leaving directory '/home/grfz/src/emacs-master-next'
> make[1]: *** [Makefile:370: all] Error 2
> make[1]: Leaving directory '/home/grfz/src/emacs-master-next'
> make: *** [GNUmakefile:95: default] Error 2
> 
> Line 35 in lisp/cedet/semantic/bovine/c.el reads:
> 
> (require 'semantic/bovine/c-by)
> 
> There is no semantic/bovine/c-by.el in the tree, but
> cedet/Changelog.1 says it was removed in 2013-11-30 together
> with other generated files.

It was removed from Git, but it gets regenerated as part of the
build.

> c-by.el starts this way:

So you do have c-by.el in the tree?  Now I'm confused.

> so perhaps we should arrange for all the .elc files needed by semantic/lex and/or semantic/bovine to be present, before compiling c-by.el."
> 
> 
> but    make -j 1   did not help.
> 
> So I copied several .el files which were not generated from
> a not so old installation of emacs, like so:

That's the wrong way of handling the problem.

You need to understand why c-by.el is not generated as part of the
build.  It's supposed to be generated by the rules in
admin/grammars/Makefile.in, which run early on during the build.  It
is run via the rule in lisp/Makefile.in for the target "semantic",
look around line 415 in that file.  Why doesn't that happen in your
case?